/*
 * SonarQube
 * Copyright (C) 2009-2023 SonarSource SA
 * mailto:info AT sonarsource DOT com
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public License
 * along with this program; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 */
package org.sonar.ce.task.projectanalysis.step;

import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.sonar.ce.task.projectanalysis.component.FileAttributes;
import org.sonar.ce.task.projectanalysis.component.TreeRootHolderRule;
import org.sonar.ce.task.projectanalysis.measure.MeasureRepositoryRule;
import org.sonar.ce.task.projectanalysis.metric.MetricRepositoryRule;
import org.sonar.ce.task.step.ComputationStep;
import org.sonar.ce.task.step.TestComputationStepContext;

import static org.assertj.core.api.Assertions.assertThat;
import static org.sonar.api.measures.CoreMetrics.NCLOC;
import static org.sonar.api.measures.CoreMetrics.NCLOC_KEY;
import static org.sonar.api.measures.CoreMetrics.NCLOC_LANGUAGE_DISTRIBUTION;
import static org.sonar.api.measures.CoreMetrics.NCLOC_LANGUAGE_DISTRIBUTION_KEY;
import static org.sonar.ce.task.projectanalysis.component.Component.Type.DIRECTORY;
import static org.sonar.ce.task.projectanalysis.component.Component.Type.FILE;
import static org.sonar.ce.task.projectanalysis.component.Component.Type.PROJECT;
import static org.sonar.ce.task.projectanalysis.component.ReportComponent.builder;
import static org.sonar.ce.task.projectanalysis.measure.Measure.newMeasureBuilder;

public class ReportLanguageDistributionMeasuresStepTest {

  private static final String XOO_LANGUAGE = "xoo";
  private static final String JAVA_LANGUAGE = "java";

  private static final int ROOT_REF = 1;
  private static final int DIRECTORY_REF = 1234;
  private static final int FILE_1_REF = 12341;
  private static final int FILE_2_REF = 12342;
  private static final int FILE_3_REF = 12343;
  private static final int FILE_4_REF = 12344;

  @Rule
  public TreeRootHolderRule treeRootHolder = new TreeRootHolderRule();

  @Rule
  public MetricRepositoryRule metricRepository = new MetricRepositoryRule()
    .add(NCLOC)
    .add(NCLOC_LANGUAGE_DISTRIBUTION);

  @Rule
  public MeasureRepositoryRule measureRepository = MeasureRepositoryRule.create(treeRootHolder, metricRepository);

  ComputationStep underTest = new LanguageDistributionMeasuresStep(treeRootHolder, metricRepository, measureRepository);

  @Before
  public void setUp() {
    treeRootHolder.setRoot(
      builder(PROJECT, ROOT_REF)
        .addChildren(
          builder(DIRECTORY, DIRECTORY_REF)
            .addChildren(
              builder(FILE, FILE_1_REF).setFileAttributes(new FileAttributes(false, XOO_LANGUAGE, 1)).build(),
              builder(FILE, FILE_2_REF).setFileAttributes(new FileAttributes(false, XOO_LANGUAGE, 1)).build(),
              builder(FILE, FILE_3_REF).setFileAttributes(new FileAttributes(false, JAVA_LANGUAGE, 1)).build(),
              builder(FILE, FILE_4_REF).setFileAttributes(new FileAttributes(false, null, 1)).build())
            .build())
        .build());
  }

  @Test
  public void compute_ncloc_language_distribution() {
    measureRepository.addRawMeasure(FILE_1_REF, NCLOC_KEY, newMeasureBuilder().create(10));
    measureRepository.addRawMeasure(FILE_2_REF, NCLOC_KEY, newMeasureBuilder().create(8));
    measureRepository.addRawMeasure(FILE_3_REF, NCLOC_KEY, newMeasureBuilder().create(6));
    measureRepository.addRawMeasure(FILE_4_REF, NCLOC_KEY, newMeasureBuilder().create(2));

    underTest.execute(new TestComputationStepContext());

    assertThat(measureRepository.getAddedRawMeasure(FILE_1_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY).get().getStringValue()).isEqualTo("xoo=10");
    assertThat(measureRepository.getAddedRawMeasure(FILE_2_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY).get().getStringValue()).isEqualTo("xoo=8");
    assertThat(measureRepository.getAddedRawMeasure(FILE_3_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY).get().getStringValue()).isEqualTo("java=6");
    assertThat(measureRepository.getAddedRawMeasure(FILE_4_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY).get().getStringValue()).isEqualTo("<null>=2");

    assertThat(measureRepository.getAddedRawMeasure(DIRECTORY_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY).get().getStringValue()).isEqualTo("<null>=2;java=6;xoo=18");
    assertThat(measureRepository.getAddedRawMeasure(ROOT_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY).get().getStringValue()).isEqualTo("<null>=2;java=6;xoo=18");
  }

  @Test
  public void do_not_compute_ncloc_language_distribution_when_no_ncloc() {
    underTest.execute(new TestComputationStepContext());

    assertThat(measureRepository.getAddedRawMeasure(FILE_1_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY)).isNotPresent();
    assertThat(measureRepository.getAddedRawMeasure(FILE_2_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY)).isNotPresent();
    assertThat(measureRepository.getAddedRawMeasure(FILE_3_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY)).isNotPresent();
    assertThat(measureRepository.getAddedRawMeasure(FILE_4_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY)).isNotPresent();

    assertThat(measureRepository.getAddedRawMeasure(DIRECTORY_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY)).isNotPresent();
    assertThat(measureRepository.getAddedRawMeasure(ROOT_REF, NCLOC_LANGUAGE_DISTRIBUTION_KEY)).isNotPresent();
  }

}
